Crafting, PvE, (and PvP) should be relatively independant.
Relatively is a nice word. This will never be the case, and people realize that and exploit it all the way. Rakata medpacs, stimpacks, adrenals, rings the bell? In 1.2 my character cannot wear augmented boots and gauntlets, because I'm only PvE-ing and crafting. Not-PvP-ing limits my PvE capabilities. So if you're only PvP-ing and crafting, this should limit your capabilities as a crafter. Everything is intertwined, always.